docs: def token_approve(self, spender_address, price, from_account):
          """
          Approve the passed address to spend the specified amount of tokens.
  
          :param spender_address: Account address, str
          :param price: Asset price, int
          :param from_account: Account address, str
          :return: bool
          """
          if not Web3Provider.get_web3().isChecksumAddress(spender_address):
              spender_address = Web3Provider.get_web3().toChecksumAddress(spender_address)
  
          tx_hash = self.send_transaction(
              'approve',
              (spender_address,
               price),
              transact={'from': from_account.address,
                        'passphrase': from_account.password}
          )
          return self.get_tx_receipt(tx_hash).status == 1